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///|
///without spaces
/// 返回一个新数组，其中元素被反转。
///
/// # 示例
///
/// ```
/// reverse([1,2,3,4]) |> println()
/// ```
fn reverse[T](xs : Array[T]) -> Array[T] {
Array::rev(xs)
}
test {
assert_eq!(reverse([1,2,3,4]), [4, 3, 2, 1]) // pass
assert_eq!(reverse([1,2,3,4]), [4, 3, 2, 1]) //pass
let _ = "https://github.com"
}
fn main {
let greeting =
#|
#| (\(\
#| ( -.-)
#| o_(")(")
#| __ __ ____ __ ___ ____ _ __
#| / / / /__ / / /___ / |/ /___ ____ ____ / __ )(_) /_
#| / /_/ / _ \/ / / __ \ / /|_/ / __ \/ __ \/ __ \/ __ / / __/
#| / __ / __/ / / /_/ / / / / / /_/ / /_/ / / / / /_/ / / /_
#| /_/ /_/\___/_/_/\____/ /_/ /_/\____/\____/_/ /_/_____/_/\__/
#|
println(greeting)
// Define two array of Int.
let arr1 : Array[Int] = [1, 2, 3, 4, 5]
// Let compiler infer the type.
let arr2 = [6, 7, 8, 9, 10]
// Get the length of the array.
println(arr1.length())
// Access the element of the array.
println(arr1[1])
// We change the elements inside the array.
// The binding of arr1 is immutable, it still points to the same array.
// The internal mutability of the array is defined by the standard library and
// is not affected by the binding.
arr1.push(6)
arr1[1] = 10
println("push and change element:")
println(arr1)
}
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